gcc/testsuite/gcc.dg/i386-387-8.c

   1 /* Verify that 387 fptan instruction is generated. Also check fptan
   2    peephole2 optimizer.  */
   3 /* { dg-do compile { target "i?86-*-*" } } */
   4 /* { dg-options "-O2 -ffast-math -march=i686" } */
   5 /* { dg-final { scan-assembler "fptan" } } */
   6 /* { dg-final { scan-assembler-not "fld1" } } */
   7
   8 extern double tan (double);
   9
  10 double f1(double x)
  11 {
  12   return 1.0 / tan(x);
  13 }
  14